It is believed that SCP-055-J is capable of affecting anyone who has directly made contact with it, however due to its very nature, this is currently unconfirmed.

Awkward sentence. Consider "SCP-055-J is believed to be capable of of affecting any individual by contact, but this is unconfirmed due to its nature."

Due to the danger it presents, SCP-055-J has been classed as Keter until further notice.

Classifications are based on difficulty of containment, not danger.

fifety-three

Spelling.

Overall:

I liked the subversion that it wasn't a reversal of 055 as I initially surmised, but upon retrospection it's still kind of a cliche take. In fact, upon retrospection of that, perhaps you included the three things I pointed out on purpose, as Researcher Smalls is not great on the competency department?

Still, It definitely got me to laugh which is a plus, but it feels a bit… inconsistent, even if Researcher Smalls himself is a can short of a six-pack give how the document which purportedly is written up by him also documents clearly his incompetence.